PI solves focusing problem with quick mechanisms and superior controllers.
Whether or not inspecting semiconductor wafers, measuring optical elements, or imaging organic samples, the standard of the info relies on sustaining good focus. Fashionable microscopes and floor metrology techniques usually work at excessive magnifications the place the depth of focus could be just a few micrometers –and even much less. A slight change in pattern peak, floor topography, thermal drift, or vibration can rapidly transfer the world of curiosity out of focus, degrading picture high quality and measurement accuracy.
Choices – Piezo and Voice Coil
Quick nano-precision focusing techniques akin to PI’s piezo-driven P-725 and voice-coil-driven V-308 remedy this problem by constantly adjusting the target lens or pattern place with nanometer-level decision and millisecond response instances. In optical profilometry and 3D floor metrology, fast focus scanning allows correct reconstruction of advanced floor options, whereas in automated microscopy it permits giant areas or a number of samples to be inspected with out sacrificing picture sharpness.
Semiconductor Inspection / Metrology
The mixture of excessive velocity and nanometer precision is particularly essential in semiconductor inspection, the place thousands and thousands of options have to be measured rapidly and precisely. By minimizing focus errors and decreasing settling instances, precision focusing techniques improve throughput, enhance repeatability, and allow dependable detection of more and more smaller defects and constructions. As imaging resolutions proceed to enhance and manufacturing calls for improve, quick nanopositioning focus techniques have turn into a important enabling expertise for next-generation metrology and microscopy gear.
Attaining nanometer precision in milliseconds, not solely requires precision mechanics and sensors, but in addition superior electronics and management algorithms. PI offers benchtop and OEM digital movement controllers with superior linearization and optimization for each scanning and quick step & settle purposes.
Industries Served and Functions
Semiconductor inspection, Metrology, DNA Sequencing, Microscopy, Photonics, Laser Processing.
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